Unblock My Savings Account

I have a savings account with Capitec, and since 2021 I have been unable to use the money that shows as available in my account. When I try to withdraw or use all of the money, the transaction is blocked and the cash does not come out, even though the balance appears in my account. I recently went to the Capitec branch at Twin City to resolve this. At the branch I was told that I must bring the person who transferred the money into my account so that they can speak to them. This is not a reasonable request for me, and in the meantime I am still unable to access and use my own funds. I am asking Capitec to unblock my savings account or my transactions so that I can withdraw and use my money without further problems.